Product Description
Hu-Lift HL 30 Pump Piston is a precision-machined, induction-hardened carbon steel component designed as the hydraulic pump piston for manual pallet jack models. This OEM-specific part ensures precise function within the hydraulic system on designated Hu-Lift pallet trucks. Cross-reference part numbers not available from manufacturer documentation.
Compatibility: Fits pallet jacks made by Hu Lift, model HP25L. SKU: HL 30
Specifications
Material & Construction
| Material Specification | Precision-machined carbon steel |
| Surface Finish | Ground and polished sealing surface |
Part Numbers
| OEM Part Number | HL 30 |
| Manufacturer Part Number | HL 30 |
Frequently Asked Questions
Q: What is the HL 30 pump piston material and hardness?
A: The HL 30 is precision-machined carbon steel with induction hardening applied to the sealing surface. This hardness specification ensures durability in high-pressure hydraulic pump cycles and resists galling or wear against the pump bore.
Q: Which Hu Lift pallet jack models use the HL 30 pump piston?
A: The HL 30 is engineered for Hu Lift HP25L manual pallet jacks. Cross-reference with your equipment documentation or contact our parts team to confirm compatibility with your specific serial range.
Q: What are the ground and polished sealing surface specifications of the HL 30?
A: The HL 30 sealing surface is precision ground and polished to minimize friction loss and maintain the hydraulic pump efficiency. Surface finish quality directly affects pump pressure maintenance and cycle speed on manual pallet jacks.
Q: What hydraulic fluid compatibility does the HL 30 have?
A: The HL 30 pump piston is compatible with standard ISO VG 46 hydraulic fluids used in manual pallet jack systems. Verify your equipment fluid specification before use to avoid seal degradation or piston wear.
Q: When should the HL 30 pump piston be replaced?
A: Replace the HL 30 if the pallet jack loses pressure hold, exhibits reduced lift speed, or if the piston surface shows scoring or visible wear. A worn piston causes hydraulic fluid bypass, reducing pump efficiency.
Q: Is the HL 30 an OEM replacement part?
A: Yes, the HL 30 is the OEM pump piston specified by Hu Lift for HP25L manual pallet jacks. This is a direct factory replacement part.